Which finding would suggest hypothyroidism rather than hyperthyroidism?

Which finding would suggest hypothyroidism rather than hyperthyroidism?

• A. Dry skin and coarse hair
• B. Exophthalmos
• C. Lid lag
• D. Weight loss

Answer: (A)

The key idea is distinguishing signs of low versus high thyroid function. Dry skin and coarse hair reflect hypothyroidism because reduced thyroid hormone slows many body processes, leading to drier skin and hair that is less healthy and more brittle. In contrast, signs like exophthalmos and lid lag are linked to hyperthyroidism, driven by excess thyroid activity and immune-related inflammation, and weight loss is commonly seen with hyperthyroidism due to a higher metabolic rate. So the presence of dry skin and coarse hair best points to hypothyroidism.

The key idea is distinguishing signs of low versus high thyroid function. Dry skin and coarse hair reflect hypothyroidism because reduced thyroid hormone slows many body processes, leading to drier skin and hair that is less healthy and more brittle. In contrast, signs like exophthalmos and lid lag are linked to hyperthyroidism, driven by excess thyroid activity and immune-related inflammation, and weight loss is commonly seen with hyperthyroidism due to a higher metabolic rate. So the presence of dry skin and coarse hair best points to hypothyroidism.